Question

what reactants form a combustion reaction?
a. a hydrocarbon and water
b. a hydrocarbon and oxygen
c. hydrogen and water vapor
d. water vapor and oxygen

Explanation:

A combustion reaction is a reaction in which a substance reacts with oxygen. Hydrocarbons are common substances that undergo combustion. The general form of a hydrocarbon - oxygen combustion reaction is hydrocarbon + oxygen → carbon - dioxide + water.

Answer:

B. A hydrocarbon and oxygen